<template>
    <div class="app-container">
        <!-- 顶部Header 区域 -->
        <mt-header fixed title="黑马程序员Vue项目">
			<span slot="left" @click="goback" v-show="flag">
				<mt-button icon="back">返回</mt-button>
			</span>
		</mt-header>
        <!-- 中间的路由 router-view 区域 ， 此处添加动画 -->
		<transition>
			<router-view></router-view>
		</transition>
        <!-- 地步 Table区域 -->
        <nav class="mui-bar mui-bar-tab">
			<router-link class="mui-tab-item-index" to="/home">
				<span class="mui-icon mui-icon-home"></span>
				<span class="mui-tab-label">首页</span>
			</router-link>
			<router-link class="mui-tab-item-index" to="/member">
				<span class="mui-icon mui-icon-contact"></span>
				<span class="mui-tab-label">会员</span>
			</router-link>
			<router-link class="mui-tab-item-index" to="/shopcar">
				<span class="mui-icon mui-icon-extra mui-icon-extra-cart"><span class="mui-badge" id="badge">{{$store.getters.getAllCount}}</span></span>
				<span class="mui-tab-label">购物车</span>
			</router-link>
			<router-link class="mui-tab-item-index" to="/search">
				<span class="mui-icon mui-icon-search"></span>
				<span class="mui-tab-label">搜索</span>
			</router-link>
		</nav>
    </div>
</template>
<script>
export default{
	data(){
		return{
			flag:false//设置是否显示返回按钮
		}
	},
	created(){
		this.flag = this.$route.path === '/home' ? false : true
	},
	methods: {
		goback(){
			//返回按钮
			this.$router.go(-1)
		}
	},
	watch:{
		'$route.path':function(newVal){
			if(newVal === '/home'){
				this.flag = false
			}else{
				this.flag = true
			}
		}
	}
}
</script>
<style scoped lang="less">
.mint-header{
	z-index: 99;
}
.app-container{
	padding-top:40px;
	padding-bottom:50px;
	overflow-x: hidden;
}
/*添加动画样式 */
.v-enter{
	opacity: 0;
	transform: translateX(100%);
}
.v-leave-to{
	opacity: 0;
	transform: translateX(-100%);
	position:absolute;
}
.v-enter-active,.v-leave-active{
	transition: all 0.5s ease;
}
.mui-bar-tab .mui-tab-item-index.mui-active{
	color: #007aff;
}
.mui-bar-tab .mui-tab-item-index {
    display: table-cell;
    overflow: hidden;
    width: 1%;
    height: 50px;
    text-align: center;
    vertical-align: middle;
    white-space: nowrap;
	text-overflow: ellipsis;
	color: #929292;
}
.mui-bar-tab .mui-tab-item-index .mui-icon {
    top: 3px;
    width: 24px;
    height: 24px;
    padding-top: 0;
    padding-bottom: 0;
}
.mui-bar-tab .mui-tab-item-index .mui-icon~.mui-tab-label {
    font-size: 11px;
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
}
</style>